An embodiment comprises: a housing; a bobbin which is placed inside the housing and moves along an optical axis; a coil which is placed on the bobbin and to which a driving signal and a sensing signal are provided; magnets which are placed on the housing; and a position sensor which is placed on the housing. The position sensor senses the position of the bobbin by means of a magnetic field generated by means of the coil. The magnets comprise a first magnet and a second magnet. The position sensor is placed adjacent to the first magnet and/or the second magnet. The position sensor and the first magnet and/or the second magnet do not overlap in the direction from the position sensor to the optical axis.